CN106354317B - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
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- CN106354317B CN106354317B CN201610786395.1A CN201610786395A CN106354317B CN 106354317 B CN106354317 B CN 106354317B CN 201610786395 A CN201610786395 A CN 201610786395A CN 106354317 B CN106354317 B CN 106354317B
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- 239000003990 capacitor Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 14
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 230000001965 increasing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 poly 3-octyl Chemical group 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
- User Interface Of Digital Computer (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a touch display panel and a touch display device, which convert touch pressure into an electric signal by using a capacitive sensor, convert the electric signal into a pulse signal by using a first controller, and feed back the pulse signal to the capacitive sensor.
Description
Technical Field
The invention relates to the technical field of touch control equipment, in particular to a touch control display panel and a display device.
Background
With the development of touch display technology, especially the rapid development of wearing technologies such as smart watches and smart bracelets, the requirements of people on display products are increasing. When a user uses the conventional touch display panel, the touch display panel cannot generate feedback to fingers of the user, so that when the user operates the touch display panel, the touch feeling of the user operates on a smooth surface, the touch feeling and friction feeling of a real object cannot be caused, and the user experience is poor.
Therefore, a touch display panel and a display device are needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims at the defects in the prior art, and provides a touch display panel and a display device, which are used for at least partially solving the problem of poor user experience caused by no feedback signal of the conventional touch display panel and display device.
The invention adopts the following technical scheme to solve the technical problems:
the invention provides a touch display panel, which comprises a display panel, a first controller positioned in a non-display area of the display panel, and a touch module positioned in the display area of the display panel, wherein the touch module comprises a capacitance sensor and a touch layer, and the capacitance sensor is contacted with the touch layer;
the capacitive sensor is used for converting touch pressure into an electric signal and sending the electric signal to the first controller;
the first controller is used for converting the electric signal into a pulse signal and feeding back the pulse signal to the capacitive sensor.
Further, the touch display panel further comprises a second controller, wherein the second controller is connected with the first controller and is used for determining a touch position, determining graphic information displayed at the touch position and sending the graphic information to the first controller, and the graphic information is in the shape of a graphic;
the first controller is specifically configured to compare the graphic information sent by the second controller with preset graphic information, determine a size of a pulse signal corresponding to the graphic information according to a corresponding relationship between the preset graphic information and the pulse signal, convert the electrical signal into the pulse signal, and feed back the pulse signal to the capacitive sensor.
Preferably, the first controller includes: an input unit, a micro control unit and an output unit;
the input unit is connected with the capacitance sensor and the micro-control unit and is used for receiving the electric signal sent by the capacitance sensor and sending the electric signal to the micro-control unit;
the micro control unit is connected with the output unit and the second controller, and is used for receiving the graphic information sent by the second controller, determining the size of the pulse signal according to the corresponding relation between the graphic information and the preset graphic information and the size of the pulse signal, and sending a control instruction for representing the size of the pulse signal to the output unit;
the output unit is connected with the capacitance sensor and is used for generating pulse signals with corresponding sizes according to the control instruction and feeding the pulse signals back to the capacitance sensor.
Preferably, the output unit includes: a multivibrator module the system comprises an amplifying module, a boosting module and an adjusting module;
the multivibrator module is used for generating a pulse signal;
the amplifying module is connected with the multivibrator module and the boosting module and is used for amplifying the pulse signals generated by the multivibrator module and sending the amplified pulse signals to the boosting module;
the adjusting module is connected with the boosting module and the micro-control unit of the first controller and is used for adjusting the resistance connected to the boosting module according to the control instruction;
the boosting module is connected with the capacitance sensor and is used for boosting the output voltage of the pulse signal and feeding the boosted pulse signal back to the capacitance sensor.
Preferably, the multivibrator module includes: the first transistor VT1, the second transistor VT2, the first capacitor C1, the second capacitor C2, the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are connected with one another, and the first end of the first resistor R1, the first end of the second resistor R2, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected with one another; the first end of the first capacitor C1 is respectively connected with the second end of the first resistor R1 and the collector electrode of the first transistor VT1, and the second end of the first capacitor C1 is respectively connected with the second end of the second resistor R2 and the base electrode of the second transistor VT 2; the first end of the second capacitor C2 is respectively connected with the second end of the third resistor R3 and the base electrode of the first transistor VT1, and the second end of the second capacitor C2 is respectively connected with the second end of the fourth resistor R4 and the collector electrode of the second transistor VT 2; the emitter of the first transistor VT1 and the emitter of the second transistor VT2 are grounded;
the amplifying module includes: the first end of the fifth resistor R5 is connected with the second end of the second capacitor C2, the second end of the fifth resistor R5 is connected with the base electrode of the third transistor VT3, the emitter electrode of the third transistor VT3 is connected with the base electrode of the fourth transistor VT4, the collector electrode of the VT4 is connected with the collector electrode of the third transistor VT3, and the emitter electrode of the fourth transistor VT4 is grounded;
the boosting module comprises a transformer T and a third capacitor C3, a first end of the third capacitor C3 is connected with a first end of an input side of the transformer T, a second end of the third capacitor C3 is grounded, and a second end of the input side of the transformer T is connected with collectors of a third transistor VT3 and a fourth transistor VT 4;
the adjusting module comprises a sliding rheostat RP, a first fixed end of the sliding rheostat RP is connected with a first end of a fourth resistor R4, and a second fixed end of the sliding rheostat RP is connected with a first end of a third capacitor C3.
Preferably, the capacitive sensor is formed on the touch layer and comprises a first electrode and a second electrode, and the second electrode is connected with the first controller through the touch layer;
the first electrode is used for converting touch pressure into an electric signal when touch operation occurs;
the second electrode is used for sensing an electric signal of the first electrode and sending the electric signal to the first controller; and receiving a pulse signal fed back by the first controller.
Preferably, the display panel is an OLED display panel, including: the OLED display panel further comprises an enhancement layer for improving color concentration and enhancing and uniformly brightness.
Preferably, the material of the reinforcing layer is ZnS.
Further, the OLED display panel further includes a photosensitive material layer and an isolation layer, the isolation layer is located on the fourth electrode layer, and the photosensitive material layer is formed on the light emitting layer; the enhancement layer is positioned between the photosensitive material layer and the fourth electrode layer or between the isolation layer and the touch control layer.
The invention also provides a touch display device comprising the touch display panel.
The invention can realize the following beneficial effects:
according to the invention, the touch pressure is converted into an electric signal by using the capacitive sensor, the electric signal is converted into a pulse signal by using the first controller, and the pulse signal is fed back to the capacitive sensor, so that the pulse signal can generate slight vibration, the skin on the finger tip is stretched, a user can feel the vibration generated by the pulse signal, even if the surface of the touch panel is a smooth surface, the user can obtain touch feeling with friction feeling when performing touch, and the touch experience of the user is enhanced.
Drawings
Fig. 1 is a schematic structural diagram of a touch display panel according to the present invention;
FIG. 2 is a schematic diagram of a touch display panel according to the present invention;
FIG. 3 is a schematic diagram of an input unit according to the present invention;
FIG. 4 is a schematic diagram of the structure of the output unit of the present invention;
fig. 5a-5d are schematic diagrams of the relationship among ZnS capacitance, wavelength, luminance, and touch pressure.
Legend description:
1. display panel 2, touch control film group 3 and first controller
4. Second controller 11, substrate 12, insulating layer
13. Isolation column 14, third electrode layer 15, light-emitting layer
16. Fourth electrode layer 17, isolation layer 18, enhancement layer
19. Photosensitive material layer 21, cover plate 22 and capacitive sensor
23. Touch layer 221, first electrode 222, and second electrode
Detailed Description
The following description of the embodiments of the present invention will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
When a finger is scratched by an object, the skin on the finger generates stretching information through friction, and then visual feeling is formed in the brain.
The following describes the technical scheme of the present invention in detail with reference to fig. 1 and 2.
As shown in fig. 1, an embodiment of the present invention provides a touch display panel, which includes a display panel 1 and a first controller 3, wherein the first controller 3 is located in a non-display area of the display panel. The touch display panel further comprises a touch module 2, and the touch module 2 comprises: the touch screen comprises a cover plate 21, a capacitive sensor 22 and a touch layer 23, wherein the capacitive sensor 22 is in contact with the touch layer 23. The cover plate 21 may be made of transparent rubber, and the first controller 3 may be an intermediate frequency controller.
It should be noted that, the display panel 1 may be an OLED, an LCD, or an EPD, and in the embodiment of the present invention, an OLED is taken as an example for illustration.
As shown in fig. 1, the display panel 1 includes: the substrate 11, the insulating layer 12, the isolation post 13, the third electrode layer 14, the light emitting layer 15, and the fourth electrode layer 16 are sequentially formed on the substrate 11, the insulating layer 12, the third electrode layer 14, the light emitting layer 15, and the fourth electrode layer 16, and the isolation post 13 is disposed on the insulating layer 12. The third electrode layer 14 and the fourth electrode layer 16 are ITO (Indium Tin Oxide) layers. The touch layer 23 is formed on the isolation layer 17. In the embodiment of the present invention, the third electrode layer 14 is an anode layer, and the fourth electrode layer 16 is a cathode layer, and it should be noted that the third electrode layer 14 may be a cathode layer, and the fourth electrode layer may be an anode layer.
When a touch operation occurs, the touch pressure is transmitted to the capacitive sensor 22 via the cover plate 21, and the capacitive sensor 22 is configured to convert the touch pressure into an electrical signal and transmit the electrical signal to the first controller 3. The first controller 3 is configured to convert the electrical signal into a pulse signal and feed back the pulse signal to the capacitive sensor 22.
According to the invention, the touch pressure is converted into an electric signal by using the capacitive sensor, the electric signal is converted into a pulse signal by using the first controller, and the pulse signal is fed back to the capacitive sensor, so that the pulse signal can generate slight vibration, the skin on the finger tip is stretched, a user can feel the vibration generated by the pulse signal, even if the surface of the touch panel is a smooth surface, the user can obtain touch feeling with friction feeling when performing touch, and the touch experience of the user is enhanced.
The range of the pulse signal output by the first controller 3 is 100-180V, and the corresponding relation between the graphic information and the size of the pulse signal is preset in the first controller 3, wherein the graphic information is in the shape of a graphic.
Further, as shown in fig. 2, the touch display panel further includes a second controller 4, where the second controller 4 may be a control chip of the display panel 1, and the second controller 4 is connected to the first controller 3 and configured to determine a touch position, determine graphic information displayed at the touch position, and send the graphic information to the first controller 3.
The first controller 3 is specifically configured to compare the graphic information sent by the second controller 4 with preset graphic information, and determining the size of the pulse signal corresponding to the graphic information sent by the first controller 3 according to the corresponding relation between the preset graphic information and the pulse signal, converting the electric signal into the pulse signal, and feeding back the pulse signal to the capacitance sensor 22.
As shown in fig. 1 and 2, the capacitive sensor 22 is formed on the touch layer 23, and the capacitive sensor 22 includes a first electrode 221 and a second electrode 222, and the second electrode 222 is connected to the first controller 3 through the touch layer 23. The first electrode 221 is a driving electrode, driven by a driving pulse signal, and the second electrode 222 is a receiving electrode. The first electrode 221 is used for converting touch pressure into an electrical signal when a touch operation occurs. The second electrode 222 is used for sensing an electric signal of the first electrode 221, transmitting the electric signal to the first controller 3, and receiving a pulse signal fed back by the first controller 3.
The structure of the first controller 3 will be described in detail below with reference to fig. 2.
As shown in fig. 2, the first controller 3 includes: an input unit 31, a micro control unit 32, and an output unit 33. It should be noted that the first controller 3 may further include a power supply unit 34, where the power supply unit 34 is connected to the input unit 31, the micro control unit 32, and the output unit 33, respectively, and is configured to supply power to the input unit 31, the micro control unit 32, and the output unit 33, respectively.
The input unit 31 is connected to the capacitive sensor 22 and the micro control unit 32, respectively, for receiving the electrical signal transmitted from the capacitive sensor 22 and transmitting the electrical signal to the micro control unit 32. Specifically, the input unit 31 receives the electric signal transmitted from the second electrode 222.
The micro control unit 32 is connected to the output unit 33 and the second controller 4, and is configured to receive the graphic information sent by the second controller 4, determine the size of the pulse signal according to the graphic information and the corresponding relationship between the preset graphic information and the size of the pulse signal, and send a control instruction for indicating the size of the pulse signal to the output unit 33.
The output unit 33 is connected to the capacitive sensor 22, specifically, to the second electrode 222, and is configured to generate a pulse signal with a corresponding magnitude according to the control instruction, and feed back the pulse signal to the second electrode 222 of the capacitive sensor 22.
That is, after the micro control unit 32 determines the magnitude of the pulse signal, the instruction output unit 33 outputs the pulse signal with the corresponding magnitude to the capacitive sensor 22, so as to generate the vibration with the corresponding magnitude on the cover 21, so that the finger of the user pressed on the cover 21 can feel, obtain the touch feeling with friction feeling, and enhance the touch experience of the user.
As shown in fig. 3, the input unit 31 may include an amplifier, a PWM (Pulse Width Modulation ) controller, and a counter, and when the finger presses the touch display panel, the capacitive sensor 22 generates an electrical signal, and when the input unit 31 receives the electrical signal, the electrical signal is amplified via the amplifier, the PWM controller gates a 16-bit counter with a clock frequency of 24MHz, and the count value in the counter is increased, thereby detecting the presence of a human hand.
The structure of the output unit 33 will be described in detail below with reference to fig. 4.
As shown in fig. 4, the output unit 33 includes: multivibrator module 331, amplifying module 332, boosting module 333, and adjusting module 334. The multivibrator module 331 is used for generating a pulse signal. The amplifying module 332 is connected to the multivibrator module 331 and the boost module 333, and is configured to amplify the pulse signal generated by the multivibrator module 331 and send the amplified pulse signal to the boost module 333. The adjusting module 334 is respectively connected to the boost module 333 and the micro control unit 32 of the first controller 3, and is configured to adjust the resistance of the switch-in boost module 333 according to the control command sent by the micro control unit 32. The boost module 333 is connected to the capacitive sensor 22, and is configured to boost an output voltage of the pulse signal, and feed the boosted pulse signal back to the capacitive sensor 22.
Specifically, multivibrator module 331 includes: the first transistor VT1, the second transistor VT2, the first capacitor C1, the second capacitor C2, the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are connected with one another, and the first end of the first resistor R1, the first end of the second resistor R2, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected with one another; the first end of the first capacitor C1 is respectively connected with the second end of the first resistor R1 and the collector electrode of the first transistor VT1, and the second end of the first capacitor C1 is respectively connected with the second end of the second resistor R2 and the base electrode of the second transistor VT 2. The first end of the second capacitor C2 is connected to the second end of the third resistor R3 and the base of the first transistor VT1, respectively, and the second end of the second capacitor C2 is connected to the second end of the fourth resistor R4 and the collector of the second transistor VT2, respectively. The emitter of the first transistor VT1 and the emitter of the second transistor VT2 are grounded.
The amplifying module 332 includes: the first end of the fifth resistor R5 is connected with the second end of the second capacitor C2, the second end of the fifth resistor R5 is connected with the base electrode of the third transistor VT3, the emitter electrode of the third transistor VT3 is connected with the base electrode of the fourth transistor VT4, the collector electrode of the fourth transistor VT4 is connected with the collector electrode of the third transistor VT3, and the emitter electrode of the fourth transistor VT4 is grounded.
The boost module 333 includes a transformer T and a third capacitor C3, where a first end of the third capacitor C3 is connected to a first end of an input side of the transformer T, a second end of the third capacitor C3 is grounded, and a second end of the input side of the transformer T is connected to collectors of the third transistor VT3 and the fourth transistor VT4, respectively.
The adjusting module 334 includes a sliding resistor RP, a first fixed end of the sliding resistor RP is connected to a first end of the fourth resistor R4, and a second fixed end of the sliding resistor RP is connected to a first end of the third capacitor C3.
When the touch operation occurs, the display brightness of the touch position is lower than that of the non-touch position, so that the display brightness of the whole touch display panel is uneven. Moreover, the touch display panel is additionally provided with the touch module on the basis of the conventional display panel, so that the color concentration of the touch display panel is reduced compared with that of the conventional display panel.
To solve the above problems, further, as shown in fig. 1, the touch display panel may further include an enhancement layer 18 for improving color density and enhancing and uniform brightness.
Preferably, the material of the enhancement layer 18 may be ZnS.
As the light absorption requirement of ZnS is extremely low, the ZnS can be excited by a weak light source, so that the problem of insufficient color concentration of the touch display panel can be solved.
As can be seen from fig. 5a and 5b, the larger the stretching ratio and the pressure applied to ZnS, the larger the ZnS capacitance. As can be seen from fig. 5c and 5d, the larger the capacitance of ZnS, the longer the wavelength, and the greater the light emission luminance.
ZnS materials can emit light of different wavelengths when energized, and ZnS has greater elasticity and ductility and can be stretched even to 4.8 times the original length. Since ZnS material becomes thin as a whole when stretched, the pitch in the capacitor layer becomes small, and the electric field is enhanced while the voltage is kept constant, and thus the electroluminescence is enhanced. Therefore, as the touch pressure exists at the touch position, correspondingly, the display brightness of the touch position is correspondingly increased under the action of ZnS material, so that the defect of insufficient display brightness at the touch position is overcome. That is, as the enhancement layer 18 extends, the display brightness increases, so that the display brightness of the entire touch display panel can be balanced, and the touch display panel can maintain a good display effect.
By selecting ZnS material as the material of the enhancement layer, the ZnS material can be used for responding to the external pressure and the brightness of the whole touch display panel can be uniform through the characteristic of reflecting the light intensity.
Further, as shown in fig. 1, the display panel further includes a photosensitive material layer 19 and an isolation layer 17, wherein the isolation layer 17 is disposed on the fourth electrode layer 16, and the photosensitive material layer 19 is formed on the light emitting layer 15, i.e., between the light emitting layer 15 and the fourth electrode layer 16.
The enhancement layer 18 is located between the photosensitive material layer 19 and the second electrode layer 16, or between the isolation layer 17 and the touch layer 23.
Preferably, the material of the photosensitive material layer 19 is P3OT (poly 3-octyl substituted polythiophene).
The photosensitive material has a photoconductive effect, and when light is irradiated onto the photosensitive material layer 19, the photosensitive material layer 19 absorbs energy of photons, and electrons in a non-conductive state are changed into electrons in a conductive state, causing a carrier concentration to become large, so that the conductivity of the material is increased. Under the action of light, the photosensitive material layer 19 absorbs the energy of the incident photons, and if the energy of the photons is greater than or equal to the forbidden bandwidth of the photosensitive material, electron hole pairs are excited, so that the concentration of carriers is increased, and the conductivity of the photosensitive material is increased.
Further, znS has the property of electroluminescence, that is, a luminescence phenomenon generated by exciting ZnS by corresponding electric energy under the action of a certain electric field, so that the light-sensitive material layer 19 is excited by the light emitted by the light-emitting layer 15, and the light-sensitive material layer 19 converts part of the light energy into electric energy and excites ZnS by using the generated electric energy, so that the luminescence phenomenon is generated, and the display brightness of the whole touch display panel is further enhanced.
The invention also provides a touch display device, which comprises the touch display panel, and the structure of the touch display panel is not repeated here.
According to the touch display panel and the display device, the capacitive sensor is formed on the touch layer, when a human hand touches the touch display panel, the capacitive sensor sends an electric signal to the first controller, and finally the first controller sends a pulse signal to the capacitive sensor, so that the pulse signal is utilized to slightly vibrate the finger cortex, and the skin on the finger tip is stretched, so that a non-smooth touch feeling is brought to a user even if the surface of the touch display panel is smooth.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (9)
1. The touch display panel comprises a display panel and a first controller positioned in a non-display area of the display panel, and is characterized by further comprising a touch module positioned in the display area of the display panel, wherein the touch module comprises a cover plate, a capacitance sensor and a touch layer, and the capacitance sensor is in contact with the touch layer;
the capacitive sensor is used for converting the touch pressure transmitted by the cover plate into an electric signal and transmitting the electric signal to the first controller;
the first controller is used for converting the electric signal into a pulse signal and feeding back the pulse signal to the capacitive sensor;
the capacitive sensor is formed on the touch layer and comprises a first electrode and a second electrode, and the second electrode is connected with the first controller through the touch layer;
the first electrode is used for converting touch pressure into an electric signal when touch operation occurs;
the second electrode is used for sensing an electric signal of the first electrode and sending the electric signal to the first controller; and receiving a pulse signal fed back by the first controller.
2. The touch display panel of claim 1, further comprising a second controller coupled to the first controller for determining a touch location, determining graphical information displayed at the touch location, and sending the graphical information to the first controller, the graphical information being in the shape of a graphic;
the first controller is specifically configured to compare the graphic information sent by the second controller with preset graphic information, determine a size of a pulse signal corresponding to the graphic information according to a corresponding relationship between the preset graphic information and the pulse signal, convert the electrical signal into the pulse signal, and feed back the pulse signal to the capacitive sensor.
3. The touch display panel of claim 2, wherein the first controller comprises: an input unit, a micro control unit and an output unit;
the input unit is connected with the capacitance sensor and the micro-control unit and is used for receiving the electric signal sent by the capacitance sensor and sending the electric signal to the micro-control unit;
the micro control unit is connected with the output unit and the second controller, and is used for receiving the graphic information sent by the second controller, determining the size of the pulse signal according to the corresponding relation between the graphic information and the preset graphic information and the size of the pulse signal, and sending a control instruction for representing the size of the pulse signal to the output unit;
the output unit is connected with the capacitance sensor and is used for generating pulse signals with corresponding sizes according to the control instruction and feeding the pulse signals back to the capacitance sensor.
4. The touch display panel of claim 3, wherein the output unit comprises: the multi-harmonic oscillation module, the amplifying module, the boosting module and the adjusting module;
the multivibrator module is used for generating a pulse signal;
the amplifying module is respectively connected with the multivibrator module and the boosting module and is used for amplifying the pulse signals generated by the multivibrator module and transmitting the amplified pulse signals to the boosting module;
the adjusting module is respectively connected with the boosting module and the micro-control unit of the first controller and is used for adjusting the resistance connected to the boosting module according to the control instruction;
the boosting module is connected with the capacitance sensor and is used for boosting the output voltage of the pulse signal and feeding the boosted pulse signal back to the capacitance sensor.
5. The touch display panel of claim 4, wherein the multivibrator module comprises: the first transistor VT1, the second transistor VT2, the first capacitor C1, the second capacitor C2, the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are connected with one another, and the first end of the first resistor R1, the first end of the second resistor R2, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected with one another; the first end of the first capacitor C1 is respectively connected with the second end of the first resistor R1 and the collector electrode of the first transistor VT1, and the second end of the first capacitor C1 is respectively connected with the second end of the second resistor R2 and the base electrode of the second transistor VT 2; the first end of the second capacitor C2 is respectively connected with the second end of the third resistor R3 and the base electrode of the first transistor VT1, and the second end of the second capacitor C2 is respectively connected with the second end of the fourth resistor R4 and the collector electrode of the second transistor VT 2; the emitter of the first transistor VT1 and the emitter of the second transistor VT2 are grounded;
the amplifying module includes: the first end of the fifth resistor R5 is connected with the second end of the second capacitor C2, the second end of the fifth resistor R5 is connected with the base electrode of the third transistor VT3, the emitter electrode of the third transistor VT3 is connected with the base electrode of the fourth transistor VT4, the collector electrode of the fourth transistor VT4 is connected with the collector electrode of the third transistor VT3, and the emitter electrode of the fourth transistor VT4 is grounded;
the boosting module comprises a transformer T and a third capacitor C3, a first end of the third capacitor C3 is connected with a first end of an input side of the transformer T, a second end of the third capacitor C3 is grounded, and a second end of the input side of the transformer T is respectively connected with collectors of a third transistor VT3 and a fourth transistor VT 4;
the adjusting module comprises a sliding rheostat RP, a first fixed end of the sliding rheostat RP is connected with a first end of a fourth resistor R4, and a second fixed end of the sliding rheostat RP is connected with a first end of a third capacitor C3.
6. The touch display panel of claim 1, wherein the display panel is an OLED display panel comprising: the OLED display panel further comprises an enhancement layer for improving color concentration and enhancing and uniformly brightness.
7. The touch display panel of claim 6, wherein the material of the enhancement layer is ZnS.
8. The touch display panel according to claim 7, wherein the OLED display panel further comprises a photosensitive material layer and an isolation layer, the isolation layer being on the fourth electrode layer, the photosensitive material layer being formed on the light emitting layer;
the enhancement layer is located between the photosensitive material layer and the fourth electrode layer, or between the isolation layer and the touch layer.
9. A touch display device comprising the touch display panel according to any one of claims 1-8.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610786395.1A CN106354317B (en) | 2016-08-30 | 2016-08-30 | Touch display panel and display device |
| US15/572,150 US10310607B2 (en) | 2016-08-30 | 2017-06-19 | Touch display panel and display device |
| PCT/CN2017/088941 WO2018040675A1 (en) | 2016-08-30 | 2017-06-19 | Touch display panel and display device |
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| CN201610786395.1A CN106354317B (en) | 2016-08-30 | 2016-08-30 | Touch display panel and display device |
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| CN106354317B true CN106354317B (en) | 2024-04-16 |
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| CN106354317B (en) * | 2016-08-30 | 2024-04-16 | 京东方科技集团股份有限公司 | Touch display panel and display device |
| CN110442234B (en) * | 2019-06-29 | 2021-06-01 | 华为技术有限公司 | Electronic equipment and vibration feedback system |
| CN111128022B (en) * | 2019-12-24 | 2021-04-23 | 云谷（固安）科技有限公司 | Display panel, preparation method thereof and display device |
| CN113377241A (en) * | 2021-07-08 | 2021-09-10 | 深圳市优奕视界有限公司 | Display touch integrated chip for realizing human-computer interaction function |
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Also Published As
| Publication number | Publication date |
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| US20180292903A1 (en) | 2018-10-11 |
| WO2018040675A1 (en) | 2018-03-08 |
| CN106354317A (en) | 2017-01-25 |
| US10310607B2 (en) | 2019-06-04 |
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